TM5-5420-226-20-1Symptom-3DETAiLEDTROUBLESHOOTINGPROCEDUREVEHICLEOPERATION- POWERPLANT,STARTING(Continued)~NOTEIf outsideair temperatureis above4(Y, go to Step~WARNING1Donottouchmanifoldpreheaterwith barehands.JCheckmanifoldpreheaterfor heat.FirstTechnician(TopDeck)l Open left and right top deck grille doors.SecondTechnician(OperatorsStation)l Set MASTERBATTERYswitchON.l Set FUELPUMPSswitchON.l At the same time, press STARTERBUTTON,PREHEATSWITCHand operateprimerpump.Donot holdswitcheson for morethan14 seconds.FirstTechnician(TopDeck)l Reach throughgrilledooropeningandfeel for heatfrommanifoldpreheater(left andrightside).l Check if heat comes from both manifoldpreheater.SecondTechnician(OperatorsStation)l Set MASTERBATTERYswitchOFF.Doesheat comefromboth manifoldpreheater?VIEWTHROUGHLEFTGRILLEDOORS(I)l If both preheaterare cold,See Symptom9: BOTHINTAKEMANIFOLDPREHEATERWILLNOTWORK.l If only one preheateris cold,See Symptom8: ONEINTAKEMANIFOLDPREHEATERWILLNOTWORK.TA1068434-154